We got this spiffy new fridge at the office months ago, and every time I went to get water through the door, I had to pause for a moment. I finally figured out why. Look at this:
The spout on the left dispenses ice, and you can select ice particles or ice wedges. The spout on the right dispenses water, but it says "light." Sure, anybody with an ounce of common sense can figure this out, but is it too much to expect that buttons with similar shapes and positions will do similar, or at least analagous things?